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Description of problem:
I'm not sure but doubt that the bash 4.2 change the way that evaluate expression,


LOCKDIR=`augtool print '/files/etc/libvirt/qemu-sanlock.conf/disk_lease_dir'`
if test $? != 0 || "x$LOCKDIR" = "x"   then    
   LOCKDIR="/var/lib/libvirt/sanlock"
fi



Version-Release number of selected component (if applicable):
libvirt-1.0.3-1.el7.x86_64
bash-4.2.45-1.el7.x86_64
sanlock-2.7-2.el7.x86_64
augeas-1.0.0-2.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1.just run 
#virt-sanlock-clean

2.
"/usr/sbin/virt-sanlock-cleanup: line 14: x: command not found"



Additional info:
In rhel6 , the same script can success excute.

Patch on upstream:
https://www.redhat.com/archives/libvir-list/2013-April/msg00596.html

Moving to POST:

commit c3e33e68d9785028d96be42162001d306c9b6915
Author:     Alex Jia <ajia>
AuthorDate: Mon Apr 8 17:41:50 2013 +0800
Commit:     Alex Jia <ajia>
CommitDate: Tue Apr 9 13:01:33 2013 +0800

    sanlock: add missing test command in virt-sanlock-cleanup.in
    
    RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=949483
    
    Signed-off-by: Alex Jia <ajia>

v1.0.4-98-gc3e33e6

Test with 
libvirt-1.0.5-1.el7.x86_64
bash-4.2.45-1.el7.x86_64

Before
LOCKDIR=`augtool print '/files/etc/libvirt/qemu-sanlock.conf/disk_lease_dir'`
if test $? != 0 ||  "x$LOCKDIR" = "x" ; then
  LOCKDIR="/var/lib/libvirt/sanlock"
fi

test1.sh: line 2: x: command not found

Now , add test
LOCKDIR=`augtool print '/files/etc/libvirt/qemu-sanlock.conf/disk_lease_dir'`
if test $? != 0 || test  "x$LOCKDIR" = "x" ; then
  LOCKDIR="/var/lib/libvirt/sanlock"
fi

//no error
#echo $?
0

So set it verify

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.